How to Downgrade iOS [from iOS 17 to iOS 16 or iOS 14 to iOS 13]

August 25, 2023Andrew Miller

To enjoy better service and a more advanced experience, many Apple users update their devices to the latest version of the iOS system when prompted. But perhaps not every update is satisfactory. Sometimes, a new system may cause your apps to malfunction, cause battery problems, or generate more system junk. At this point, you may want to undo the iOS update and return to the old one you are used to. However, downgrading the iOS system usually comes with a time limit, and you need to complete the operation within the time window Apple allows.

So, how to downgrade your iOS system? To help you fix this problem, we will provide you with a one-stop system downgrade guide in this article. Please follow our steps and try to do it.

Downgrade iOS

Part 1. How to Downgrade to Older iOS

To perform a system downgrade, for example, downgrade iOS 17 to 15, you must ensure your phone is fully charged and connected to a stable network. Before you begin, you may need to back up your device first to avoid losing important files.

Next, we will take the iPhone as an example and give you detailed instructions on the steps in the iOS downgrading process, so please follow the guide.

Find the Old iOS Version

Step 1:
Enter (IPSW) into your computer browser. Here, you can get the old version of iOS.
Step 2:
Select the model of your device on the page.
Select Your Model
Step 3:
Check the links with the green checkmark, and choose the version of iOS you want to downgrade.
Find Old Version
Step 4:
Click Download to get the version of iOS you want.
Download iOS Version

Then, you need to prepare your device for the downgrade.

Get Your Device into Recovery Mode

After getting the desired iOS system files from the IPSW website, you need to launch the Recovery Mode on your device so that the downloaded system can be smoothly installed on your phone and work properly in the subsequent process.

Here is what you should do to put your iPhone to the Recovery Mode.

Step 1:
First, turn down your device and connect it to the computer via a USB cable.
Step 2:
Put your device into Recovery Mode. Specific operation methods differ for different models of devices.

If you use the iPhone 8 or later version, press the Volume Up button and release it. Then press the Volume Down button and quickly release it. Finally, press the Side button and hold it.

If you use an iPhone 7, press the Side and Volume Down buttons and hold them until you see the Apple logo.

If you are using an iPhone 6 or older version, press the Home and Top buttons, then hold it until you see the Apple logo.

Part 2. How to Install Old iOS Version

You have successfully acquired the iOS you want to downgrade, and your device is ready. Simply install the old iOS version of the system on your device, and you're good to go.

Step 1:
After putting your iPhone to the Recovery Mode, open iTunes. Hold Shift on your keyboard, and choose Restore iPhone.
Step 2:
Find the old iOS file you have downloaded from IPSW, select it, and choose Open.
Find IPSW File
Step 3:
Choose Restore on the pop-out window.
Restore Again

When the process is finished, you have successfully installed the old iOS version on your device.

Part 3. Bonus: Best Tool to Fix iOS Problems

After understanding how to roll back the iOS update, perhaps you have completed the operation on your device and applied your favorite system. Although the system of iOS is very powerful and stable, we believe you will still inevitably encounter some system problems, which will make you can't apply some functions very smoothly. To solve this problem, you can try the most professional system repair software, Aiseesoft iOS System Recovery. It can assist you in repairing the iOS system in various scenarios such as an iPhone disabled, charge issue, battery drain, no service, etc. You don't need to worry about model incompatibility. It matches all iOS devices. There are two repair modes for you to choose from. Choose according to the status of your device.

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Here are the detailed steps to help you operate Aiseesoft iOS System Recovery.

Step 1:
Download and install Aiseesoft iOS System Recovery on your computer, and choose iOS System Recovery on the main interface.
Select iOS System Recovery
Step 2:
Link your iOS device to the computer with the USB lightning cable, and tap Trust on your device. Click Start to begin the repair process.
Detect iPhone Abnormal Issue
Step 3:
Select the repair mode between Standard Mode and Advanced Mode, depending on the situation of your device. Then click Confirm.
Click Confirm to Set
Step 4:
The information about your iPhone will be displayed on the interface. After confirming, click Repair to get the firmware package to fix your system issues.
Click the Repair to Set

When the process is finished, your iOS device will restart to the normal condition.

Part 4. FAQs About Downgrading iOS

How do I go back to iOS 15 from 16 without a computer?

There is no proper way to downgrade iOS without using a computer. Most of the time, you'll need to do it with the help of iTunes or other commonly used computer desktop apps to downgrade from iOS 17 to 15. So you should do it with a computer, which is also more secure.

How do I uninstall iOS 17?

Your phone can help uninstall iOS 17 if you have the beta iOS 17 profile. Open Settings and choose General. Tap the Profile Option and find the iOS 17 file. Tap Remove Profile, and the iOS 17 profile will be removed from your iPhone. After finishing this process, restart your iPhone.

Does downgrading iOS delete everything?

Yes. When you downgrade the iOS system, all data and files on your device will be erased, and your iPhone will be restored to its factory settings. Therefore, you'd better backup your device first to avoid losing important data and files.

How can I back up my iPhone or iPad before downgrading iOS?

iCloud and iTunes are the most commonly used tools for backing up Apple devices. If you need to back up your iPhone or iPad using iCloud, you must ensure your device connects to a stable Wi-Fi network. Then go to Settings, and tap your name > iCloud > iCloud Backup. Choose iCloud Backup > Backup Now. The backup process may take some time. You must be patient and ensure a stable internet connection to avoid interrupting the backup process.

Does hard reset downgrade iOS?

Hard resetting your iPhone does not downgrade your iOS operating system. This operation is still performed based on your existing operating system. It will only return your iOS device to its factory-set form and remove the stored data and files. The operating system itself will not be affected in any way.


This article details several methods that can be used to achieve a downgrade of iOS, and each of them is paired with a fairly clear step-by-step guide. Whether you want to downgrade from a later version to an older one or install an older version of the operating system directly to your device, you'll be able to find a solution that works for you.

We recommend one of the best system repair software because you may encounter system issues that cannot be easily solved while using your device. All these contents are designed to solve your problems with downgrading iOS in all aspects. We welcome you to leave a message and discuss with us.

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